FOR PATIENTS
Prepare for Your Visit
Patients undergoing radiologic testing at Weill Cornell Imaging often have questions or concerns. We understand that knowing as much as possible beforehand can help ease stress.
We invite you to read through these patient guides to prepare for your visit with us.
Computed Tomography (CT)
How should I prepare for the procedure?
Wear something that is comfortable and easy to remove. For some of the scans you will be asked to change into a gown. Metal objects interfere with the image quality so avoid clothing with zippers or snaps. You may be asked not to eat or drink anything for 4 hours prior to the exam.
If you have been given a copy of the prescription for your examination, it is important that you bring it with you on the day of your appointment.
You should inform the technologist if there is any possibility that you are pregnant or if you are currently breastfeeding.
What can I expect on the day of my appointment?
When you arrive in our office, you will be asked to complete registration forms that will allow us to collect your medical history and any necessary insurance information. One of our technologists will escort you to the changing area. You may be asked to remove hairpins, jewelry, eyeglasses, hearing aids, and any removable dental work, depending on the part of the body that is being scanned.
You will be positioned on a table and move through the CT machine so that we are able to acquire the necessary images. You may hear humming sounds during the procedure as the x-ray tube and detectors rotate. You may be asked to hold their breath for certain studies to prevent motion artifact.
Some CT scans require the use of an iodinated contrast material, also known as "x-ray dye." Depending on the type of study, you may receive contrast orally, intravenously, or both. Oral contrast may be given one to two hours prior to the actual examination to allow distribution through your bowel. Intravenous (I.V.) contrast is given at the time of the examination. If I.V. contrast is required, a skilled nurse or technologist will start the I.V., usually in the arm or hand, prior to the examination. The I.V. will be removed immediately afterward.
Our staff is available to address any questions or concerns that you might have before or after your appointment. Please call (212) 746-6000 if you wish to speak with us.
